- To show that a single drop of water can display a violent and vivid reaction between
normally nonreactive materials.
- Iodine crystals
- Powdered aluminum
- Metal pan
- Mortar and pestle
- Powder some iodine crystals in amortar and mix this powder with an equal volume of
powdered aluminum. MAKE SURE BOTH SUBSTANCES ARE COMPLETELY DRY.
- Place a little mound of the mixture in the center of the metal pan.
- Make a small depression in the top of the mound.
- (Due to the reaction that occurs, it is advised that this be done outdoors, or under a
fume hood.) Add 2 or 3 drops of water in the depression on top of the mound, and STAND
- Instantly, purple-red vapors will rise from the heap. The mound will then burst into a
beautiful purple-red flame, accompanied by a large volume of smoke.
- What allows there to be a reaction between the iodine and the aluminum?
- What color was the flame that appeared?